Connecticut State Route 337 is a north-south highway in New Haven County in Southern Connecticut. It runs from U.S. Rt. 1, in New Haven, to Connecticut State Route 142, at East Haven. CT St Rt 337 passes through the following towns in New Haven County. New Haven East Haven CT St Rt 337 is not multi-plexed in New Haven County. CT ST Rt 337 intersects the following highways in New Haven County. U.S. Rt. 1, at New Haven. Connecticut State Route 142, at East Haven.
A guide marker for CT St Rt 337. Photo from: Paul Dienhart.